Each of these tea lights is made with a cotton wick and is 100% beeswax candle. Clear plastic cups were picked to encase them as to allow more brightness shows through the holders as well as to express the uniqueness of the colors, although the actual colors may rather different from those shown in the picture above. All these colorful tealight candles are likely burn for almost four hours. Perhaps you may want to burn them simultaneously to create a combination of different ambiance.